Not to be insulitng, but if you (anyone) thinks that Bryce's fractal generators in the Terrain Editor are advanced or powerful, you're just plain wrong. They serve merely a preview purpose, although many people stick to them exclusively, which is one of the reasons many Bryce terrains look the same, or similar. Aye, I don't mean to come across as being so cocky or obnoxious, I guess it just goes with the screen name? Xenic, I agree! I love threads like this, although I am frustrated with people not being able to grasp simple mathematical concepts. You stated that the technique works fine for rolling hills and whatnot, but that's just the tip of the iceberg! Honestly, Xenic, your image-map in that post doesn't do height-mapping much justice... A fractal is a fractal. It's what you do with it that gives it detail. The only limit here is displacement, since we're using height-mapping instead of vertex mapping... Here's a fractal I generated in Kai's Power Tools 5 : Noize, an excellent and elegantly simple fractal filter for Photoshop and for Bryce. The original is at 2048x2048, this one is shrunken for web display...